CN103452731A - Preheating system for reducing cold start emission of motor vehicle - Google Patents
Preheating system for reducing cold start emission of motor vehicle Download PDFInfo
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- CN103452731A CN103452731A CN2013103974966A CN201310397496A CN103452731A CN 103452731 A CN103452731 A CN 103452731A CN 2013103974966 A CN2013103974966 A CN 2013103974966A CN 201310397496 A CN201310397496 A CN 201310397496A CN 103452731 A CN103452731 A CN 103452731A
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Abstract
The invention discloses a preheating system for reducing cold start emission of a motor vehicle and belongs to the technical field related to automobile engines and accessories thereof. The system mainly comprises an automobile small-sized burner, a heat exchanger which has a heat exchange relationship with pipelines such as a cooling water pipeline, an engine oil pipeline and a fuel supply pipeline, a pipeline loop, air inlet and exhaust and fuel supply pipelines of the automobile small-sized burner, a controller and the like. The preheating system for reducing cold start emission of the motor vehicle has the advantages that after the system is additionally installed, the emission of the motor vehicle during cold start is reduced, the engine heating process is shortened, the emission of harmful gas produced at the stage is reduced and the low-temperature wear of the engine is relieved.
Description
Technical field
The present invention is intended to utilize automobile-used microburner, before motor vehicle cold start, cooling water, machine oil, fuel supply system and emission aftertreatment equipment etc. to vehicle motor heat in advance, thereby reduce engine cold-start and the discharge of warm-up period and the cold scuffing that alleviates motor; Belong to the technical field that vehicular engine and annex thereof are relevant.
Background technique
Background technique related to the present invention mainly comprises engine cold-start Preheating unit and engine combustion and emission control technique two aspects.
The engine cold-start Preheating unit refers to before engine cold-start or, in process, by methods such as heating air inlet, fuel oil, cooling water, machine oil, improves the success rate that cylinder interior is caught fire, the device that assisting vehicle starts.Such device is comparatively common on diesel engine, and often the form with heater plug occurs.In such device, for the parts that heat, there are electric heating and microburner to heat two kinds, wherein common with electric heating.
The advantage of electrical heating method is that volume is little, cost is low, is easy to layout and installs, and shortcoming is to consume more electric energy.Due to before vehicle launch, the electric energy that electric heater consumes is all supplied with by Vehicular accumulator cell, and the too much electric energy of electric heater consumption makes storage battery can not provide enough energy to drive starter motor again, and then causes vehicle to start.In addition, because the electric energy that electric heater consumes is more, make Vehicular accumulator cell be discharged and recharged continually, cause the lost of life of storage battery.
Microburner heating is the method that the heat energy of emitting while utilizing fuel combustion heats.Microburner can work independently before automobile engine starting.The advantage of such device is that heating-up temperature is high, reliable performance, life-span are long, do not rely on Vehicular accumulator cell work.Have and utilize automobile-used microburner that the device of warm braw is provided for cockpit before vehicle launch in the market; But microburner is used for to heated engine cooling water, machine oil, fuel supply system and exhaust aftertreatment devices, and then the relevant device of minimizing vehicle cold start emission not yet occurs.
Research about engine combustion and emission control technique shows: in engine cold-start and warming-up process, due to low atomization badness, the difficulty of catching fire caused of fuel temperature, the low quenching distance that causes of cylinder wall surface temperature lengthens, low insufficient lubrication, the resistance increment caused of oil temperature, the exhaust aftertreatment devices temperature is low, and to cause transformation efficiency be lowly to cause the high reason of this process Motor Vehicle noxious emission.Before engine start, for engine cooling water, machine oil, fuel supply system and exhaust aftertreatment devices heating, can effectively reduce the discharge produced in engine start and warming-up process.
Summary of the invention
The present invention is intended to utilize automobile-used microburner, before motor vehicle cold start, cooling water, machine oil, fuel supply system and emission aftertreatment equipment etc. to vehicle motor heat in advance, thereby reduce engine cold-start and the discharge of warm-up period and the cold scuffing that alleviates motor.
The present invention adopts following technological scheme:
A kind of for reducing the heating system in advance of motor vehicle cold start discharge, its composition comprises automobile-used microburner 5, engine cooling water-to-water heat exchanger 1, machine oil heat exchanger 2, fuel supply heat exchanger 3, burner control 6 and relevant pipeline loop; Also include fuel tank 8 and the fuel pump 7 of Motor Vehicle existing equipment, fuel tank 8 is used for storing fuel, and fuel pump 7 is for the certain pressure feed fuels.Fuel pump 7 also is connected with automobile-used microburner 5 except the motor feed fuels on existing Motor Vehicle, to automobile-used microburner 5 feed fuels simultaneously.Automobile-used microburner 5 is connected with burner control 6 use circuit, and burner control 6 is for being controlled automobile-used microburner 5; The high temperature heat source entrance that the outlet of the burnt gas of automobile-used microburner 5 is supplied with heat exchanger 3 with engine cooling water-to-water heat exchanger 1, machine oil heat exchanger 2, fuel respectively is connected, passes into above-mentioned engine cooling water-to-water heat exchanger 1, machine oil heat exchanger 2, fuel for the burnt gas by high temperature and supplies with 3 three heat exchangers of heat exchanger and heat for engine cooling water, machine oil and fuel.Simultaneously, the outlet of the burnt gas of automobile-used microburner 5 is before the original engine exhaust equipment for after-treatment 4 of motor and link outlet pipe, is used for as the heating of exhaust aftertreatment equipment.The high temperature heat source outlet that engine cooling water-to-water heat exchanger 1, machine oil heat exchanger 2, fuel are supplied with 3 three heat exchangers of heat exchanger is before exhaust aftertreatment equipment 4 and link outlet pipe, and utilizing temperature more than the burnt gas not yet utilized in above-mentioned three heat exchangers is that exhaust aftertreatment equipment 4 heats.
Engine cooling water-to-water heat exchanger 1, machine oil heat exchanger 2, fuel are supplied with heat exchanger 3 and are lamella heat exchanger, and the high temperature fluid in heat exchanger does not mix with cryogen.
Engine cooling water-to-water heat exchanger 1 is arranged on engine cooling water short circle pipeline peripheral wall.Machine oil heat exchanger 2 is arranged on the wall around the engine motor oil drain pan.Fuel is supplied with heat exchanger 3 and is arranged on the peripheral wall of fuel supply system main line.
Advantage of the present invention is:
(1) by heating before starting, effectively reduce the discharge and the wearing and tearing that produce in engine cold-start and warming-up process
Before vehicle launch, the heat that the present invention utilizes automobile-used microburner to produce heats in advance for engine cooling water, machine oil, fuel supply system and exhaust aftertreatment equipment.The heated engine cooling water can effectively shorten the quenching distance of fuel under cold start-up and warming-up process operating mode, contributes to fuel to be lighted and more perfect combustion, and then HC and CO discharge while reducing engine cold-start.Heating machine oil can effectively reduce the frictional loss in engine cold-start and warming-up process, and then reduces the fuel injection pulsewidth under above-mentioned operating mode, and then reduces discharge; In addition, through the engine oil flow heated, improve, make lubricated the improving between each friction pair in motor, contribute to reduce engine scuffing.The heating fuel supply system is of value to fuel better atomization in cylinder, thereby has reduced the fuel injection pulsewidth of engine cold-start and warming-up process, has reduced the discharge of motor.The thermal exhaust equipment for after-treatment, shortened the time that exhaust aftertreatment equipment reaches operating temperature, contributes to reduce discharge.
(2) use an automobile-used microburner, be a plurality of parts heating simultaneously, and the energy utilization is abundant
The present invention uses an automobile-used microburner, is a plurality of parts heating that need heating simultaneously, and compact structure, be convenient to reequip on existing vehicle and arrange.Produce heat after the engine cooling water-to-water heat exchanger of flowing through, machine oil heat exchanger, fuel are supplied with heat exchanger by automobile-used microburner, again entering outlet pipe is the heating of exhaust aftertreatment equipment, has realized the cascade utilization of energy, utilizes fully.
(3) heating process does not affect use and the life-span of storage battery
Because the present invention uses automobile-used microburner as thermal source, only have the few electric energy of burner control consumption, power consumption is little, in heating process, can the use of storage battery not impacted.Than using electric heater as thermal source, heating process of the present invention is not followed the large electric current repeated charge of storage battery, thereby for not affecting the working life of storage battery.
(4) can select whether to use this device by mode switch
The burner control related in the present invention includes mode switch, and and if only if when the user opens mode switch, and the present invention just heats in advance for associated components before engine cold-start.When the user closes mode switch, motor carries out according to normal cold start-up and warming-up process, and the present invention will not carry out any interference, can avoid like this problem of due to the present invention, interfering the vehicle occur not start immediately.
The accompanying drawing explanation
Fig. 1 is a kind of for reducing the heating system general illustration in advance of motor vehicle cold start discharge;
Fig. 2 burner heater 6 schematic diagrams.
In figure: 1-engine cooling water-to-water heat exchanger, 2-machine oil heat exchanger, 3-fuel is supplied with heat exchanger, 4-exhaust aftertreatment equipment, the automobile-used microburner of 5-, 6-burner control, 7-fuel pump, 8-fuel tank.
Embodiment
Fig. 1 is general illustration of the present invention.
The present invention is comprised of automobile-used microburner, engine cooling water-to-water heat exchanger, machine oil heat exchanger, fuel delivery heat exchanger, burner control and the relevant component such as pipeline loop.Fuel tank 8 and fuel pump 7 are Motor Vehicle existing equipments, and fuel tank 8 is used for storing fuel, and fuel pump 7 is for the certain pressure feed fuels.Fuel pump 7 to the motor feed fuels, is connected with automobile-used microburner 5 in the present invention simultaneously on existing Motor Vehicle, for to automobile-used microburner 5 feed fuels.Automobile-used microburner 5 is connected with burner control 6 use circuit, and burner control 6 is for being controlled automobile-used microburner 5, and controlling method and strategy will be introduced below.The high temperature heat source entrance that the outlet of the burnt gas of automobile-used microburner 5 is supplied with heat exchanger 3 with engine cooling water-to-water heat exchanger 1, machine oil heat exchanger 2, fuel respectively is connected, passes into above-mentioned engine cooling water-to-water heat exchanger 1, machine oil heat exchanger 2, fuel for the burnt gas by high temperature and supplies with 3 three heat exchangers of heat exchanger and heat for engine cooling water, machine oil and fuel.Simultaneously, the outlet of the burnt gas of automobile-used microburner 5 is before the engine exhaust equipment for after-treatment and link outlet pipe, is used for as the heating of exhaust aftertreatment equipment.The high temperature heat source outlet that engine cooling water-to-water heat exchanger 1, machine oil heat exchanger 2, fuel are supplied with 3 three heat exchangers of heat exchanger is before exhaust aftertreatment equipment and link outlet pipe, and utilizing temperature more than the burnt gas not yet utilized in above-mentioned three heat exchangers is the heating of exhaust aftertreatment equipment.
Engine cooling water-to-water heat exchanger 1, machine oil heat exchanger 2, fuel are supplied with heat exchanger 3 and are lamella heat exchanger, and the high temperature fluid in heat exchanger does not mix with cryogen.
Engine cooling water-to-water heat exchanger 1 is arranged on engine cooling water short circle pipeline peripheral wall.Machine oil heat exchanger 2 is arranged on the wall around the engine motor oil drain pan.Fuel is supplied with heat exchanger 3 and is arranged on the peripheral wall of fuel supply system main line.
Fig. 2 is the schematic diagram of burner control 6 in the present invention.
V1 means the 5V VDC after overvoltage conversion module conversion, in order to ensure the normal operation of each components and parts in Fig. 2.U1 is 8051 type single-chip microcomputers, and the control core as burner control, be arranged in its peripheral C1, C2, tri-pieces of electric capacity of C3, and crystal oscillator U3 and resistance R 1 are all the components and parts in the peripheral circuit for ensureing the single-chip microcomputer normal operation.In figure, J1 and J2 represent respectively car key door START position and mode switch, during the equal closure of J1 and J2 that and if only if, be positioned at thereafter just export high level with door U2A, the output terminal of U2A and the P1.0 of single-chip microcomputer U1 be connected with the P1.1 mouth (being labeled as P1B0T2 and P1B1T2EX in Fig. 2).The P1.6 of single-chip microcomputer U1 is connected respectively with two input ends of door U4A with P1.7 mouth (being labeled as P1B6MISO and P1B7SCK in figure).Simultaneously, the P1.6 mouth of single-chip microcomputer U1 also is connected with a normally closed control end that closes relay K 1.Normally closed another control end that closes relay K 1 is connected with GND.The normally closed controlled end that closes relay K 1 is the closure valve be arranged on as in the pipeline of automobile-used microburner feed fuels, and while only having K1 to open, automobile-used microburner just has fuel to supply with, otherwise can't work.With the output terminal of door U4A, with the output terminal of car key door START position, be connected.
By the program in single-chip microcomputer U1, P1.0 and P1.1 mouth are made as to input end, P1.6 and P1.7 mouth are made as to output terminal.During the single-chip microcomputer initialization, P1.0, P1.1, P1.6 and P1.7 mouth all are made as to low level.The control logic of burner control 6 is: during the equal closure of J1, J2 that and if only if, the driver has opened mode switch and has rotated key door and attempt to start vehicle, with door U2A, high level output is just arranged, and now the P1.0 of single-chip microcomputer U1 and P1.1 have the high level input.The P1.0 mouth of single-chip microcomputer U1 is for controlling the P1.6 mouth, and when the P1.0 mouth sets high level, the P1.6 mouth exports high level, and now normally closed relay K 1 control end that closes is connected, and the closure valve of controlled end is opened, and automobile-used microburner is started working.When the P1.1 mouth sets high level, the delay procedure of single-chip microcomputer U1 inside starts, and single-chip microcomputer U1 starts computation delay, and when delay procedure finishes, the P1.7 mouth sets high level.Only ought now with the output terminal of door U4A, output be arranged, motor now is through heating in advance after a while, but motor do not start, and with the car key door START position be connected with door U4A output terminal, input arranged, and vehicle is launched.After the P1.0 mouth has the high level input and then the P1.6 mouth is set high to level, program no longer detects the input of P1.0 mouth and it is resetted, and the driver needn't keep key door in the START position in heating process.Until, after delay procedure completes, again detect the input of P1.0 mouth, if now the P1.0 mouth sets high level, be that vehicle starts, all mouthfuls of single-chip microcomputer U1 resetted, the normally closed control end that closes relay K 1 no longer includes electric current to be passed through, valve closing, automobile-used microburner quits work.
Claims (3)
1. one kind for reducing the heating system in advance of motor vehicle cold start discharge, it is characterized in that: its composition comprises that automobile-used microburner (5), engine cooling water-to-water heat exchanger (1), machine oil heat exchanger (2), fuel supplies with heat exchanger (3), burner control (6) and relevant pipeline loop; Also include fuel tank (8) and the fuel pump (7) of Motor Vehicle existing equipment, fuel tank (8) is used for storing fuel, and fuel pump (7) is for the certain pressure feed fuels; Fuel pump (7) also is connected with automobile-used microburner (5) except the motor feed fuels on existing Motor Vehicle, to automobile-used microburner (5) feed fuels simultaneously; Automobile-used microburner (5) is connected with circuit with burner control (6), and burner control (6) is for being controlled automobile-used microburner (5); The high temperature heat source entrance that the outlet of the burnt gas of automobile-used microburner (5) is supplied with heat exchanger (3) with engine cooling water-to-water heat exchanger (1), machine oil heat exchanger (2), fuel respectively is connected, passes into above-mentioned engine cooling water-to-water heat exchanger (1), machine oil heat exchanger (2), fuel for the burnt gas by high temperature and supplies with (3) three heat exchangers of heat exchanger and heat for engine cooling water, machine oil and fuel; Simultaneously, (5 burnt gas exports front at the original engine exhaust equipment for after-treatment of motor (4) and links outlet pipe automobile-used microburner, is used for as the heating of exhaust aftertreatment equipment; The high temperature heat source outlet that engine cooling water-to-water heat exchanger (1), machine oil heat exchanger (2), fuel are supplied with (3) three heat exchangers of heat exchanger is front and link outlet pipe at exhaust aftertreatment equipment (4), and utilizing temperature more than the burnt gas not yet utilized in above-mentioned three heat exchangers is exhaust aftertreatment equipment (4) heating.
2. according to claim 1 a kind of for reducing the heating system in advance of motor vehicle cold start discharge, it is characterized in that: engine cooling water-to-water heat exchanger (1), machine oil heat exchanger (2), fuel are supplied with heat exchanger (3) and are lamella heat exchanger, and the high temperature fluid in heat exchanger does not mix with cryogen.
3. according to claim 1 a kind of for reducing the heating system in advance of motor vehicle cold start discharge, it is characterized in that: engine cooling water-to-water heat exchanger (1) is arranged on engine cooling water short circle pipeline peripheral wall; Machine oil heat exchanger (2) is arranged on the wall of engine motor oil drain pan; Fuel is supplied with heat exchanger (3) and is arranged on the peripheral wall of fuel supply system main line.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310397496.6A CN103452731B (en) | 2013-09-04 | 2013-09-04 | A kind of heating system in advance for reduce engine motor-car cold start emission |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310397496.6A CN103452731B (en) | 2013-09-04 | 2013-09-04 | A kind of heating system in advance for reduce engine motor-car cold start emission |
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| CN103452731A true CN103452731A (en) | 2013-12-18 |
| CN103452731B CN103452731B (en) | 2016-04-20 |
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| CN201310397496.6A Expired - Fee Related CN103452731B (en) | 2013-09-04 | 2013-09-04 | A kind of heating system in advance for reduce engine motor-car cold start emission |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847543A (en) * | 2015-05-20 | 2015-08-19 | 中国人民解放军装甲兵技术学院 | Engine low-temperature-start gas heater and control method thereof |
| CN111706446A (en) * | 2020-06-23 | 2020-09-25 | 安徽华菱汽车有限公司 | Starting system of gas engine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2727207C1 (en) * | 2019-11-13 | 2020-07-21 | Федеральное государственное казенное военное образовательное учреждение высшего образования "Военный учебно-научный центр Военно-воздушных сил "Военно-воздушная академия имени профессора Н.Е. Жуковского и Ю.А. Гагарина" (г. Воронеж) | Small-sized mobile station for heating of engines and cabin of aircrafts |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5205250A (en) * | 1991-12-06 | 1993-04-27 | Herbert Easterly | Fuel preheating system |
| CN2716535Y (en) * | 2004-07-19 | 2005-08-10 | 中国人民解放军军事交通学院 | Simple auxiliary device for plateau low temperature cold start of diesel engine |
| CN200952444Y (en) * | 2006-04-18 | 2007-09-26 | 马宗元 | Thermoelectric preheating device for diesel locomotive |
| CN201827002U (en) * | 2010-07-19 | 2011-05-11 | 北京北宇机械设备有限公司 | Novel thermoelectric preheating device for diesel locomotive |
| CN202220701U (en) * | 2011-09-05 | 2012-05-16 | 中联重科股份有限公司 | Engine heating system |
-
2013
- 2013-09-04 CN CN201310397496.6A patent/CN103452731B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5205250A (en) * | 1991-12-06 | 1993-04-27 | Herbert Easterly | Fuel preheating system |
| CN2716535Y (en) * | 2004-07-19 | 2005-08-10 | 中国人民解放军军事交通学院 | Simple auxiliary device for plateau low temperature cold start of diesel engine |
| CN200952444Y (en) * | 2006-04-18 | 2007-09-26 | 马宗元 | Thermoelectric preheating device for diesel locomotive |
| CN201827002U (en) * | 2010-07-19 | 2011-05-11 | 北京北宇机械设备有限公司 | Novel thermoelectric preheating device for diesel locomotive |
| CN202220701U (en) * | 2011-09-05 | 2012-05-16 | 中联重科股份有限公司 | Engine heating system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847543A (en) * | 2015-05-20 | 2015-08-19 | 中国人民解放军装甲兵技术学院 | Engine low-temperature-start gas heater and control method thereof |
| CN111706446A (en) * | 2020-06-23 | 2020-09-25 | 安徽华菱汽车有限公司 | Starting system of gas engine |
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| CN103452731B (en) | 2016-04-20 |
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